$.fn.infinitecarousel = function() {
	function repeat(str, num) {
		return new array(num + 1).join(str)
	}
	return this.each(function() {
		var $wrapper = $('> .wrapper', this).css('overflow', 'hidden'),
		$slider = $wrapper.find('> .pic-item-list'),
		$items = $slider.find('> .pic-item'),
		$single = $items.filter(':first'),
		singlewidth = $single.outerwidth(),
		visible = math.ceil($wrapper.innerwidth() / singlewidth),
		currentpage = 1,
		pages = math.ceil($items.length / visible);
		if (($items.length % visible) != 0) {
			$slider.append(repeat('<li class="empty" />', visible - ($items.length % visible)));
			$items = $slider.find('> .pic-item')
		}
		$items.filter(':first').before($items.slice( - visible).clone().addclass('cloned'));
		$items.filter(':last').after($items.slice(0, visible).clone().addclass('cloned'));
		$items = $slider.find('> .pic-item');
		$wrapper.scrollleft(singlewidth * visible);
		function gotopage(page) {
			var dir = page < currentpage ? -1 : 1,
			n = math.abs(currentpage - page),
			left = singlewidth * dir * visible * n;
			$wrapper.filter(':not(:animated)').animate({
			scrollleft: '+=' + left
		},
		500,
		function() {
			if (page == 0) {
				$wrapper.scrollleft(singlewidth * visible * pages);
				page = pages
			} else if (page > pages) {
				$wrapper.scrollleft(singlewidth * visible);
				page = 1
				}
				currentpage = page
			});
			return false
		}
		$wrapper.after('<a class="arrow back"></a><a class="arrow forward"></a>');
		$('a.back', this).click(function() {
			return gotopage(currentpage - 1)
		});
		$('a.forward', this).click(function() {
			return gotopage(currentpage + 1)
		});
		$(this).bind('goto',
		function(event, page) {
			gotopage(page)
		});
		$(this).bind('next', function () {
			gotopage(currentpage + 1);
		});
	})
};